ROSAT DETECTION OF CLASS-I PROPTOSTARS IN THE CRA CORONET

We analyze archival ROSAT data of the CrA star forming region. X-ray e mission from five infrared Class I protostars in the Coronet cluster w as recently found in ASCA data, however, with low spatial resolution a nd partly ambiguous source identification. ROSAT high spatial resoluti on data confirm the X-ray detection of three Class I protostars. The o ther two infrared protostars might be extincted to strongly for being detected in the softer ROSAT bandpass. Alternatively, the X-ray emissi on might be strongly variable and they might have been too faint in X- rays at the time of the ROSAT observations.